Hello all.
This is more of a solution that I will post, but also a question - why.
So, here's my story.
I purchased an unlocked maguro yakjuux 4.0.1 GSM Galaxy Nexus, after playing around with it, I decided to unlock the bootloader and root it - no big deal. Got an OTA update that upgraded my phone to 4.0.2, however broke my NFC ability, so I decided to take matters into my own hands.
Flashed 4.1.1 JB (Official stock image).
Everything worked fine, until one glorious day it stopped detecting as removable storage. Upon googling, I found that people had similar issues with custom kernels and the "fast charge" USB charging option, however, as I am using the stock kernel, this did not apply to me.
I unplugged the Nexus, brought it over to another computer, plugged it in, and got "USB Device Not Recognized" - "device malfunction" - no media connection (data transfer) and also, it stopped charging as well! It just charged via USB on my other machine, but no longer.
Brought it back to the other machine, and yep, device malfunction, no charge no mass storage removable device.
I thought about trying to mount the storage under my custom TWRP recovery that I flashed along with the Stock JB image, nothing.
Pulled out the power, battery, plugged the battery back in, and then the micro-USB cable. And behold, it shows the "Chaging" image (White battery symbol that you get when you charge via AC/USB power with the phone off). I thought that the situation was fixed.
Restart - plug in - same thing! How the heck is it NOT charging (note, I waited for it to charge with the phone off, so the battery DID charge) over USB power (and AC power) with the phone on?
This lead me to believe that there was something up with the phones software.
I loaded up TWRP, made a backup and then was ready to revert to stock (wipe - factory reset), Then I wiped the cache partition, and the Dalvik cache.
I then thought, what the heck, why not reboot and give it another shot, and it worked! The phone started charging and detecting again!
Why? Why did wiping the caches fix it? And furthermore, what happened?
So to anyone that has a similar issue, perhaps a Wipe of the cahces (both Dalvik and regular cache) might fix it - if you have CWM or TWRP, if not, I think you might have to do a factory reset.
My phone won't turn off in charge mode. I setting the option off, but always restarts. Not recognize MTP and other USB options. Only charge mode.
I've tried different cables and drivers but not solved. I have restored factory data and installed new rom again with kdz update and nothing.
Thanks in advance.
Update/Solution: After various reboots, factory resets and the original rom restore the problem mysteriously solved itself
Hi,
I have a massive problem.
The phone started thinking USB is connected, and always shows the "USB for charging" notification.
I need to turn it off, plug in usb, start it again to make it charge
And much worse: when I remove the USB, it keeps a wakelock, because it thinks USB is still connected.
running CM13 nighly built on the 16th.
Wiping cache did nothing
Edit: Factory reset did nothing either
I really hope you have some idea, else I have to factory reset and send it in for replacement
Thank you all
Hi guys, a week ago my phone H815 TWN started to act very strange.
Symptoms are:
1. Charging very slow and when unplugged still shows charging sign. (Fixed when remove battery but reoccurs when charging again)
2. On power off the phone reboots does not power off.
3. When battery is removed and placed back the phone boots without pressing any buttons.
4. When connected to PC via USB and then disconnected the USB connect manager notification remains active. (The phone is recognized from the PC)
Things I tried to fix the problem (unsuccessfully)
1. Cleaning the USB charging port
2. Hard and soft reset the phone.
3. Took the battery out for more than 10 min
I suspect that it is a hardware problem, as next step I am thinking to flash the firmware.
Does anyone experienced the same problems or has any idea what might be wrong?
I have strange problem with charging. When device is running and I plug a cable then it's not charging. But if I power in or reboot with plugged charger then everything is ok until I remove and plug in cable again. Then I must reboot device...
Also when phone is off and I plug a cable then it's charging ok.
I tried wipe all, restore system, even install new ROM from scratch. Always the same... Any idea?